Mars wrote:One man's trans leak is another's penetrating oil
Jeep NV241 should bolt up but it may require a 7/8" spacer between the 727 and 241. Drive shafts will likely need changed as well.KJ Ryu wrote:I think an NP241OR will bolt up. Might require driveline mods, though.
The JL's don't use an NV t-case anymore. They switched to using a case from Magna.derf wrote:I don't know if the new generation Wranglers (2018+) have a compatible input shaft either way.
I will also say you may need a spacer of some kind because Jeep changed the stick-out of the input shaft over the years.
If you go with 2007+ you'll want to swap yokes on the transfer case to a traditional U-Joint/double cardan CV joint. Jeep switched over to a crappy CV joint on the 2007+ Wranglers that isn't worth using. But it's easy enough to bolt on a different yoke from some place like Tom Woods.
I have not used one, but it should in theory work if you have an '80+ FSJ. It should be able to fit between the transmission and transfercase. HOWEVER, I would NOT put one of these in front of an NP229. If I was going to get this, I would find an NV241 to go behind it.Zink.brody wrote:Has anyone tried out a NWF doubler?
I have not used one, but it should in theory work if you have an '80+ FSJ. It should be able to fit between the transmission and transfercase. HOWEVER, I would NOT put one of these in front of an NP229. If I was going to get this, I would find an NV241 to go behind it.[/quote]Zink.brody wrote:Has anyone tried out a NWF doubler?
Magna has owned what's left of New Process Gear for quite a while now. They shut down the plant in Michigan back in 2012.Stuka wrote:The JL's don't use an NV t-case anymore. They switched to using a case from Magna.
Yeah, I see that now. After a bit of reading there are some differences, mostly because the JL has the FAD unit and the t-case has some changes to work with that (extra synchros for shifting).derf wrote:Magna has owned what's left of New Process Gear for quite a while now. They shut down the plant in Michigan back in 2012.Stuka wrote:The JL's don't use an NV t-case anymore. They switched to using a case from Magna.
I would believe the JL has a new generation case with a Magna logo and part number on it.
It's hard to find the exact part numbers for the JL transfer cases. Either that or my Google-fu is letting me down. They use the trademark names (Command-Trac, Rock-Trac, Selec-Trac) in the documentation instead of the t-case model numbers. But I wouldn't be surprised that there are differences in the new generation cases. The JL Sahara gets a full time capable transfer case so that's probably "new". Though it's probably an adaptation of the full time cases that Chevy has been using for several years now.Stuka wrote:Yeah, I see that now. After a bit of reading there are some differences, mostly because the JL has the FAD unit and the t-case has some changes to work with that (extra synchros for shifting).
I am sure the input is different because of the ZF trans used.